It was mentioned awhile back on a thread concerning the crew of a Lufthansa flight (if memory serves me correctly) departing form Helsinki, that the legal limits may vary quite significantly form country to country. For those operating out of Finland, be advised that the Finnish Aviation Act stipulates a zero-limit. The wording of the paragraph in question states that a flight crewmember (amongst others) whose blood alcohol level is elevated due to the consumption of alcohol, is not allowed to operate a flight.